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consecutive numbers area shapes factors geometric means taxicab geometry pascal's triangle range chess rectangles floors advent factorials integers sets calculus sums ave hexagons perfect numbers axes dodecagons geometry geometric mean even numbers bases dice logic shape routes quadratics balancing perimeter differentiation sport averages tournaments products sum to infinity games cards coordinates elections the only crossnumber triangle numbers prime numbers digital products colouring remainders chalkdust crossnumber gerrymandering addition 3d shapes unit fractions surds parabolas folding tube maps 2d shapes determinants doubling multiplication arrows menace probabilty triangles digital clocks tangents binary spheres angles time crosswords speed coins integration rugby decahedra people maths square grids ellipses numbers grids indices square roots quadrilaterals scales matrices means polygons algebra neighbours cube numbers cryptic crossnumbers odd numbers proportion volume medians expansions grids trigonometry crossnumbers square numbers combinatorics fractions christmas graphs chocolate palindromes dominos multiples circles regular shapes pentagons albgebra squares complex numbers clocks books wordplay lines numbers division polynomials functions tiling powers planes median consecutive integers sequences symmetry cubics money star numbers mean irreducible numbers partitions dates probability number percentages digits cryptic clues